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Politechnika
Blind Man's DominoRaised dots allow this version to be solved by touch alone.
Bognar Buvos GolyokA variation of instant insanity with 4 balls in a frame.

Rubik's Blind Man's CubeThe raised symbols on each tile allow this cube to be solved blind.
Rubik's Cube1979 Politechnika Cube with printed colors instead of stickers.
Rubik's CubeThe very first batch of the Rubiks Cube, from 1977 produced by Politechnika.

Rubik's CubeThe second batch of the Politechnika version from 1977.

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